Mercedes adds to upgrade package as top F1 teams reveal changes

The German manufacturer hopes that this weekend’s event at Barcelona will deliver a better opportunity to understand the true potential of its car overhaul than it was able to gauge at Monaco.

With the tight and twisty Monte Carlo layout making it almost impossible to get clear data on the progress made, the high-speed aero demands of Barcelona should better allow a clear picture to emerge.

And rather than stick with the same package it used in Monaco, Mercedes has made…